I keep running but nothing happens

Another early morning at the gym. Yesterday was a half hour of weights, then a half hour running. This morning a half hour on the stationary bike, then a half hour running. The track is half blocked by softball and track team equipment, so the effect is an obstacle course crowded by walkers. The stationary bike is one of those weird recumbent things that doesn't even register me on its fitness test because my pulse stays too low. It keeps telling me to try again.